package com.example.demo;

import java.util.*;


public class Solution {
    /**
     * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
     *
     *
     * @param nums int整型一维数组 
     * @param target int整型 
     * @return int整型
     */
    public int search (int[] nums, int target) {
        // write code here
        return 0;
    }

}
class test{
    public static void main(String[] args) {

    }
    // 标准代码
    public int search1 (int[] nums, int target) {
        // write code here
        int left = 0;
        int right = nums.length-1;
        while(left < right){
            int mid = (left + right);
            if(nums[mid] > target){
                right = mid - 1;
            } else if(nums[mid] < target){
                left = mid + 1;
            } else {
                return mid;
            }
        }
        if(nums.length > 0 && nums[left] == target){
            return left;
        }
        return -1;
    }
}
